Altoona, WI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Altoona, a city in Eau Claire County, Wisconsin.
Today
79°F
Chance Showers And Thunderstorms then Mostly Cloudy
A chance of showers and thunderstorms before 10am. Mostly cloudy, with a high near 79. West wind 5 to 10 mph. Chance of precipitation is 50%.
7-day forecast for Altoona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph W | 50% |
| Tonight | 57°F | Patchy Smoke then Mostly Cloudy | 0 to 10 mph NW | 8% |
| Wednesday | 79°F | Sunny | 0 to 5 mph NNW | 1% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 5 mph W | 1% |
| Thursday | 85°F | Sunny | 0 to 10 mph SSW | 1% |
| Thursday Night | 62°F | Mostly Clear | 5 to 10 mph SSW | 2% |
| Friday | 88°F | Sunny | 5 to 10 mph SSW | 7% |
| Friday Night | 64°F | Chance Rain Showers | 5 to 10 mph SSW | 34% |
| Saturday | 87°F | Slight Chance Rain Showers | 5 to 10 mph SSW | 18% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 45% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 38% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 23% |
| Monday | 84°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 26% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 5 mph NNE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Altoona (44.800, -91.440). Updated through the day.
Growing snapshot for Altoona
Last spring frost
Apr 24
First fall frost
Oct 14
Growing season
170 days
Hardiness zone
4b
More local growing data for Altoona: nearby ZIP 54720 weather · frost dates · planting calendar · Wisconsin frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Eau Claire 3Sw, Wi (4.1 mi from Altoona). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.